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net/mlx5e: Unblock setting vid 0 for VFs through the uplink rep 

It turns out that libvirt uses 0-vid as a default if no vlan was
set for the guest (which is the case for switchdev mode) and errs
if we disallow that:

error: Failed to start domain vm75
error: Cannot set interface MAC/vlanid to 6a:66:2d:48:92:c2/0 \
		for ifname enp59s0f0 vf 0: Operation not supported

So allow this in order not to break existing systems.

Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Reported-by: Maor Dickman <maord@mellanox.com>
Reviewed-by: Gavi Teitz <gavi@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
This commit is contained in:
Or Gerlitz 2019-01-01 12:44:52 +02:00 committed by Saeed Mahameed
parent c12ecc2305
commit 6ce966fd26
1 changed files with 13 additions and 0 deletions
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13
drivers/net/ethernet/mellanox/mlx5/core/en_rep.c
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@ -1293,6 +1293,18 @@ static int mlx5e_uplink_rep_set_mac(struct net_device *netdev, void *addr)
return 0;
}
static int mlx5e_uplink_rep_set_vf_vlan(struct net_device *dev, int vf, u16 vlan, u8 qos,
__be16 vlan_proto)
{
netdev_warn_once(dev, "legacy vf vlan setting isn't supported in switchdev mode\n");
if (vlan != 0)
return -EOPNOTSUPP;
/* allow setting 0-vid for compatibility with libvirt */
return 0;
}
static const struct switchdev_ops mlx5e_rep_switchdev_ops = {
.switchdev_port_attr_get = mlx5e_attr_get,
};
@ -1327,6 +1339,7 @@ static const struct net_device_ops mlx5e_netdev_ops_uplink_rep = {
.ndo_set_vf_rate = mlx5e_set_vf_rate,
.ndo_get_vf_config = mlx5e_get_vf_config,
.ndo_get_vf_stats = mlx5e_get_vf_stats,
.ndo_set_vf_vlan = mlx5e_uplink_rep_set_vf_vlan,
};
bool mlx5e_eswitch_rep(struct net_device *netdev)